Railway-switch



J. H. SKOGMAN.- RAILWAY SWITCH.

APPLICATION FILED JUNE 15, I920- A 1,358,887, A Patented Nov. 16, 1920.

2 SHEETS-SHEET I.

LZQM 6.

A TTOR/VEVS .I. H. SKOGMAN.

RAILWAY SWITCH.

APPLICATION FILED JUNE 15, 1920.

1,358, 37. Patented m. 16, 1920.

2 SHEETS-SHEET 2.

WITNESSES A TTOR/VEYS "PATENT OFFICE.

JULIUS HUGO SKOGMAN, OF JOPLIN, MISSOURI.

RAILWAY-SWITCH.

Specification of Letters Patent.

Patented Nov. 16, 1920.

Application filed June 15, 1920. Serial No. 389,095.

To all 10. mm it may concern: 7

Be it known that I, JULIUS H. SKOGMAN, a citizen of the United States, and a resident of Joplin, in the county of Jasper and State of Missouri, have invented certain new and useful Improvements in Railway- Switches, of which the following is a specification.

The present inventionrelates generally to railway switches and more particularly to a railway switch lock.

The object of the invention is to provide a switch lock which engages the switch points and locks the same in set positionindependently of the switch stand or other operatingmeans usually associated with the switch points for controlling them as to movements and positions, .to thereby preclude any possibility of splitting of the switch-due to the high speed of the passing train, to failure of the switch stand or other control to properly operate, or to other reasons.

Another important object is to provide a switch lock of this character of simple and durable construction, reliable in operation and easy and inexpensive to manufacture and which is endowed with features of resiliency which enableit to receive the forces incident to the passing of a .train and to withstand the action of these forces without having destructivestresses set up in any of its component parts.

Other objects and advantages of the invention reside in certain novel features of construction, combination and arrangement of parts which will be hereinafter more fully described and particularly pointed out in the appended claims, reference being had to the accompanying drawings forming part of this specification, and in which:

Figure 1 is a plan viewvof a switch embodying my invention;'

Fig. 2 is a side elevation thereof;

Fig. 3 isa transverse vertical section;

Fig. 4: is a detail view in transverse vertical section of the keeper for the operating bar;

Fig. 5 is a detail view in transverse section of the resilient mounting forthe rock shaft; s

Fig. 6 is a detail perspective view of a lock lugv associated portion of the rock shaft; and V Fig. 7 is a detail perspective view of. the

keeper for theoperating bar.

Referring to the drawings it will be seen thatthe invention "contemplates a railway embodying stock rails R and switch points provided with wear surfaces 8 at their outer ends. A connecting rod C which leads toa standard form of switch control such as a switch stand (not shown) serves to normally control theswitch points both as to V permitting it to be free of the rock shaft with respect to any longitudinal movement thereof. Thus the lock lug may be said to be splined to the rock shaft. The locking portion 13 is formed integral with the hub and is generally rectangular in cross section. Each of the lateral point engaging faces of the lock lug is providedwith an inclined surface 17 which constitutes a guide for camming the operative lateral face 18 into engagement with the switch point. A spacing sleeve 19 is mountedon the rock shaft between the pair of lock lugs and maintains them in proper spaced relation.

One end of the rock shaft carries the operating bar 20 which is secured theretoby a cotter pin or similar means 21 and which serves to oscillate the rock shaft and consequently the lock'lugs into and out of engagement with the switch point. The operating bar is provided with a longitudinal slot 22 which is adapted to receive the staple 23 of the keeper 24. The staple is provided with anaperture 25 adapted to receive the shackle of a pad lock or the like (not shown). A stop shoulder 26 is provided on the keeper for limiting the downward movement of the operating bar. As shown in Fig. i the keeper is carried by the base of the rail and has its side walls secured to the web of the rail by a bolt and nut 27.

Means are provided for limiting the transverse movement of the rock shaft while permitting ittopartake of a certainamount of such movement. This means comprises a movement.

coil spring 28 which is arranged upon the end of the rock shaft, as shown in Fig. 3. 'Ihe inner end of the coil spring is abutted or stopped by the web of the adj a.ent stock through the action of the collar 29 which it carries at its outer end and the motion of the housing 31 through the action of its annular flange compresses the coil spring 28 arrail. A collar 29 is carried by the outer end flanged between the collar and the flange.

of the rock shaft being secured thereto in any suitable manner as by a cross pin 30 and serves as an abutment for the outer end of the coil spring. Preferably however a housing is provided for the col spring and the associated portion of the rock shaft and comprises a cylinder 31 having an inturned annular flange 32 at its inner end which receives the direct pressure of the inner end of the col spring and transmits this pressure to the web of the stock rail. 'lhe outer end of the cylinder is exteriorly threaded, as shown, to receive the cap In practice if it is desired to move the switch points the lock lugs are rotated in a clockwise direction from the position shown in Fig. 1 until they are out of the path of the switch points. The switch points are then thrown to the desired position and the lock lugs are rotated in a counter-clockwise direction. As the lock lugs approach the switch points the guide surface 17 thereof engage the side faces of the switch points and cam the lock lugs into engagement until the lateral faces 18 of the lock lugs positively and directly engage the side faces of the switch points. The switch point lying against the stock rail is locked in position thereagainst by the adjacent lock lug and the other switch point which is spaced from the stock rail is held spaced therefrom by the lock lug adjacent thereto, as shown in Fig. 1. The switch points are then held in position and are not influenced by the passing a train irrespective of its speed so that any possibility of the switch splitting is precluded. Moreover, the operativeness and inoperativeness of the control of the switch has no effect upon its position.

An important feature of the present invention resides in the fact that the forces which act upon the lock by reason of the passing of a train are prevented from setting up destructive stresses in any of its component parts. T his is largely due to the slidable mounting of the rock shaft and the action of the coil spring 28 and its associated structure which permit the rails and the rock shaft as well as the rock shaft and the. lock lugs to partake of relative movement to the extent necessary onthe passing of a train.

lVhen for instance the stock rails are spread or moved laterally bv the passing of a tr in the operating bar 20 and the housin 3 e ch receive motion from the stock rail wh ch is disposed adjacent thereto. The operat ng bar 20 is se ured to the rock sh ft and it c rrie he ro k sh t with it in its The motion of the rock shaft As the stock rails spring back to their position after the train has passed the rock shaft and the housing under the influence of the coil spring resume their proper position.

I claim: 7

1. In a switch lock of the character described, in combination with stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and transverse movement with respect thereto, a pair of lock lugs splined on said shaft, the members of said pair being arranged adjacent the respective switch points, a spacing sleeve carried by said shaft between said lugs, means for limiting the transverse movement of the rock shaft including a coil spring ar ranged upon the rock shaft and having one end abutting a stock rail and a collar securet to the rock shaft and abutting the opposite end of the rock shaft, operating means for said rock shaft, and locking means for said operating means.

2. In a switch lock of the character described, in combination with stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and transverse movement with respect thereto, a pair of lock lugs splined on said shaft, the members of said pair being arranged adjacent the respective switch points, a spacing sleeve carried by said shaft between said lugs, means for limiting the transverse movement of the rock shaft, and operating means for said rock shaft.

3. In a switch lock of the character described, in combination with stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and transverse movement wi h respect thereto, a pair of lock lugs splined on said shaft, the members of said pair being arranged adjacent the respective switch points, a spacing sleeve carried by said shaft between said lugs, and means for limiting the transverse movement of the rock shaft.

4-. In a switch lock of the character described, in combination with stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and transverse movement with respect thereto, a pair of lock lugs splined on said shaft, the members of said pair being arranged adjacent the respective switch points. and a spacing sleeve carried by said shaft between said lugs? 5.111 a switch lock of the character described. in combination with stock rails and switch points. a rock shaft journaled in said stock rails. a lock lug carried by the rock shaft for engaging and locking a switch point, and operating means for said rock shaft, and locking means for said operating means.

6. In a switch lock of the character described, in combination with stock rails and switch points, a rock shaft journaled in said stock rails, a lock lug carried by the rock shaft for engaging and locking a switch point, and operating means for said rock shaft.

7. In a switch of the character described, in combination with stock rails and switch points, a rock shaft journaled in said stock rails, and a lock lug carried by the rock shaft for engaging and locking a switch point.

8. In a switch lock of the character described, in combination with the stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and transverse movement with respect thereto, a lock lug splined on the rock shaft for engaging and locking each switch point, and means for limiting the transverse movement of the rock shaft including a coil spring arranged upon the rock shaft and having one end abutting a stock rail and a collar secured to the rock shaft and abutting the opposite end of the rock shaft.

'9. In a switch lock of the character described, in combination with the stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and transverse movement with respect thereto, a lock lug splined on the rock shaft for engaging and locking each switch point, and spring means for limiting the transverse movement of the rock shaft including a coil spring arranged upon the rock shaft and having one end abutting a stock rail and a collar secured to the rock shaft and abutting the opposite end of the rock shaft.

10. In a switch lock of the character described, in combination with the stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and transverse movement with respect thereto, a

lock lug splined on the rock shaft for engaging and locking each switch point, and means for limiting the transverse movement of the rock shaft.

11. In a switch lock of the character described, in combination with the stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and transverse movement with respect thereto, and a lock lug splined on the rock shaft for engaging and locking each switch point.

12. In a switch lock of the character described, in combination with the stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and transverse movement with respect thereto, a lock lug splined on the rock shaft for engaging and locking each switch point, means for limiting the transverse movement of the rock shaft including a coil spring arranged upon the rock shaft and having one end abutting a stock rail and a collar secured to the rock shaft and abutting the opposite end of the rock shaft, and a housing for the coil spring and collar.

18. In a switch lock of the character described, in combination with stock rails and switch points, a lock lug for engaging and locking each of said switch points, said lock lug having an inclined guiding face for camming the lug look into operative relation with respect to said switch point.

14. In a switch lock of the character described, the combination with stock rails and switch points, a rock shaft ournaled in said stock rails to partake of rotary and transverse movements with respect thereto, and a lock lug carried by said rock shaft.

15. In a switch lock of the character described, the combination with stock rails and switch points, a rock shaft journaled in said stock rails to partake of rotary and trans verse movements with respect thereto, a lock lug carried by said rock shaft, and means for operating said rock shaft including an operating bar and a keeper for said operating bar.

JULIUS HUGO SKOGMAN. 

